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| 离子色谱法检测生物柴油中的离子含量 |
| Detection of ion content in biodiesel by ion chromatography |
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| DOI：10.12166/j.zgyz.1003-7969/2020.10.021 |
| 中文关键词: 离子色谱法 生物柴油 离子含量 |
| 英文关键词:ion chromatography biodiesel ion content |
| 基金项目:国家自然科学基金项目（51766007）；云南省自然科学基金项目（2018FB092）；NSFC云南联合基金项目（U1602272）；省部共建复杂有色金属资源清洁利用国家重点实验室自设项目（CNMRCUTS1704） |
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| 中文摘要: |
| 采用具有在线基体消除功能的离子色谱系统建立了一种可快速、高效检测生物柴油中6种阳离子、6种阴离子、3种有机酸根离子含量的方法。结果表明：该方法线性相关度高，检出限低，平均保留时间的相对标准偏差均小于1%，精密度高；利用水浴-分液漏斗两步法对油样进行前处理，可获得较高的加标回收率，当萃取次数为5次时，被分析物质的质量浓度整体最高 |
| 英文摘要: |
| An ion chromatography system with on-line matrix removal function was developed for the rapid and efficient determination of six cations, six anions and three organic acid radical ions in biodiesel. The results showed that the method had high linear correlation and low detection limit, the relative standard deviation of the average retention time was less than 1%, and the precision was high. High recovery rate was obtained when the oil sample was pretreated by two steps of water bath and separating funnel. The highest mass concentration of the analyte was obtained when the extraction times was 5. |
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